Question

Difference between smallest number of 4 digit and largest 3-digit number

Answer 1

Smallest 4 digit number =1000
Largest 3 digit number = 999
Difference =1000-999 =1

Answer 2

The difference between four digit smallest and three digit largest number is 1.

Step-by-step explanation:

To find the difference between 4 digit smallest and 3 digit largest number,

Let us take,

The 4 digit number which is smallest as 1000

And then,  

The 3 digit number which is greatest as 999

Hence to find the difference, we need to subtract 999 from 1000

So, we get,

$1000 - 999 = 1$